US3648221A - Multilayer programmable wiring board - Google Patents

Multilayer programmable wiring board Download PDF

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Publication number
US3648221A
US3648221A US18886A US3648221DA US3648221A US 3648221 A US3648221 A US 3648221A US 18886 A US18886 A US 18886A US 3648221D A US3648221D A US 3648221DA US 3648221 A US3648221 A US 3648221A
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US
United States
Prior art keywords
housing
contact element
electrical connector
accordance
slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US18886A
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English (en)
Inventor
Hans Peter Tillmann
Erik Lerchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FCI USA LLC
Original Assignee
Burndy Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Burndy Corp filed Critical Burndy Corp
Application granted granted Critical
Publication of US3648221A publication Critical patent/US3648221A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together

Definitions

  • PAIENTEDHAR 7 m2 SHEET 1 BF 2 MULTILAYER PROGRAMMABLE WIRING BOARD This invention relates to a device for establishing electrical connections between conductive surfaces which are disposed in substantially adjacent intersecting planes. Printed circuit board installations frequently require electrical connections of this type.
  • connections have relied upon permanent couplings using solder joints, or upon separable couplings which required relative motion of one of the planar surfaces.
  • a connection would involve a device, permanently coupled to one circuit board, into which another board could be inserted in sliding engagement with a contact.
  • this invention provides a positive connection, between angularly positioned conductors, which is separable, relatively flexible, and which does not employ harmful sliding contact with the conductors. It is also inexpensive to build and install, and it is simple to operate.
  • a feature of this invention is a generally arcuate contact element of flexible spring material which expands in diameter, by flexing under the action of a rotary cam, so as to engage the adjacent surfaces of a pair of angularly positioned conductors.
  • Another feature is a housing for the arcuate contact which includes a detent to hold the contact in its expanded position.
  • FIG. 1 is a front view of a connector device in accordance with this invention, showing a housing, and slots in the housing for contact elements;
  • FIGS. 2 and 3 show the contacts, cam, and housing of an embodiment of this invention, in cross section, in different stages of operation relative to a pair of planar conductors;
  • FIG. 4 shows a cam element suitable for use in a multicontact connector such as shown in FIG. 1;
  • FIG. 5 shows a key element used for disengaging contacts in the connector of FIG. 1 after they have been latched in engaged position
  • FIG. 6 shows a group of extending conductors of the type which can be electrically coupled with this invention
  • FIG. 7 shows an application of this invention in which a plurality of connectors are positioned to interconnect a plurality of circuit boards and conductors;
  • FIG. 8 is a pictorial representation, in cross section, of a contact, a housing, and coupled conductors, similar to FIG. 2.
  • one embodiment of this invention comprises a housing 4 which is provided with an arcuate contact element 3 of flexible spring material, and with a journal opening 9 which receives the operating cam 6, shown in FIG. 4.
  • the contact element 3 is located within a slot 4' which opens through an aperture in the front face of the housing 4 as shown in FIG. I.
  • a detent shoulder 10 is provided within slot 4' for retaining contact element 3 in a flexed position.
  • slot 4 is provided with a lateral channel I], which adjoins detent shoulder 10, to receive the releasing key 12, shown in FIG. 5.
  • the housing 4 may be constructed to include a plurality of slots 4' arranged in rows, and to include plural journal openings 9, one for each row.
  • Lateral release channels 11 may be formed in the housing of FIG. 1, each substantially parallel to openings 9' and connecting each of the slots 4 in a row. This permits insertion of an elongate release key 12 which can be made long enough to reach every slot.
  • the housing 4 may be positioned with the front face abutting against one or more primary surfaces 1. And, secondary conductors 2, extending at substantially right angles to conductors I, are arranged to extend into the slots 4' adjacent to contact elements 3, through apertures in the housing.
  • This arrangement defines a locating means which positions the conductors l, 2 in proper relation to slots 4' and to contact elements 3.
  • the intersecting planes of the conductors are located so as to include the contact element in the angle formed between them. Engagement with either or both of the adjacent conductor surfaces then is achieved by flexible expansion of the arcuate contact element.
  • each contact element is fixed by securing to the housing at an anchor portion 5.
  • the other end extends in an are as a relatively free cantilever in the area of detent shoulder 10.
  • Each contact is a flexible resilient spring which defines an arc portion with a certain radius of curvature at each point along its length. The portion can be flexed elastically from the relaxed position so as to increase the radius of curvature.
  • the contact elements are operated to engage conductors l and 2 by means of operating cam 6.
  • Radial projections 7 are positioned along the shaft of the cam, and the whole can be rotated by gripping the head portion 8.
  • radial projections 7 engage the inner surfaces of the contact elements and flex them from their relaxed position.
  • the curvature of each contact element increases until conductors l and 2 are engaged, and the free end is forced over detent shoulder 10. Then, the resiliency of the contact. material locks the free end back against the shoulder and the contact element is held in flexed position, touching conductors 1 and 2.
  • release key 12 Release from engagement with detent shoulder 10 is accomplished by use of release key 12.
  • the key is provided with an inclined cam surface 13 at its forward end. As the key is inserted laterally into cavity 1 I, inclined cam surface 13 applied transverse force to the free end of each contact element parallel to the surface of shoulder 10. This force eventually lifts the free end past the edge of shoulder 10 and allows the contact element to return to the relaxed position.
  • An electrical connector operable to establish an electrical path between conductor surfaces positioned in adjacent intersecting planes, comprising:
  • a housing having a slot containing said contact element with locating means to locate a pair of conductor surfaces in adjacent intersecting planes which are in substantially fixed relationship to said slot;
  • cam means including a rotary shaft with eccentric radial projections, coupled to said housing, operable to increase the radius of curvature of said arcuate contact element by flexing. for urging said contact element toward engagement with conductor surfaces located in said adjacent intersecting planes.
  • said housing further includes a release channel adjacent to said detent shoulder, through which manual force is applied to disengage said free end of said contact element from said detent shoulder.
  • said housing includes a plurality of slots in parallel, side-byside, spaced-apart relationship
  • said cam means comprises a rotatable shaft having a plurality of eccentric radial projections disposed in axially spaced-apart relationship;
  • journal opening extends into said housing through said slots, with said rotatable shaft inserted to position said eccentric radial projections within said slots for engagement with said contact elements.
  • each contact element includes a substantially fixed end portion secured to said housing and a free end portion extending in an arc;
  • said housing further includes a plurality of detent shoulders
  • said housing still further includes a release channel extending into said housing through said slots adjacent to said detent shoulders, through which manual force is applied to disengage the said free ends of said contact elements from said detent shoulders.

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  • Coupling Device And Connection With Printed Circuit (AREA)
US18886A 1969-08-07 1970-03-12 Multilayer programmable wiring board Expired - Lifetime US3648221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE77670 1969-08-07

Publications (1)

Publication Number Publication Date
US3648221A true US3648221A (en) 1972-03-07

Family

ID=3841250

Family Applications (1)

Application Number Title Priority Date Filing Date
US18886A Expired - Lifetime US3648221A (en) 1969-08-07 1970-03-12 Multilayer programmable wiring board

Country Status (7)

Country Link
US (1) US3648221A (enrdf_load_stackoverflow)
JP (1) JPS504270B1 (enrdf_load_stackoverflow)
CH (1) CH509724A (enrdf_load_stackoverflow)
DE (1) DE2038556A1 (enrdf_load_stackoverflow)
ES (1) ES382439A1 (enrdf_load_stackoverflow)
NL (1) NL7011418A (enrdf_load_stackoverflow)
SE (1) SE379894B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750086A (en) * 1972-01-03 1973-07-31 Gen Tel Co Calif Rapid connector
US3883207A (en) * 1973-09-13 1975-05-13 Molex Inc Low insertion force connector for modular circuit packages
FR2312915A1 (fr) * 1975-05-30 1976-12-24 Amp Inc Connecteur electrique
US4001679A (en) * 1975-02-19 1977-01-04 Cargile William P Wedge action electrical test probe
DE2629250A1 (de) * 1975-07-04 1977-01-27 Bonhomme F R Steckverbinder fuer leiterplatten mit gedruckten schaltungen
EP0002114A1 (en) * 1977-11-14 1979-05-30 AMP INCORPORATED (a New Jersey corporation) Zero insertion force printed circuit board edge connector
US4189200A (en) * 1977-11-14 1980-02-19 Amp Incorporated Sequentially actuated zero insertion force printed circuit board connector
EP0022305A1 (en) * 1979-07-06 1981-01-14 E.I. Du Pont De Nemours And Company Zero insertion force toggle link connector
US4420206A (en) * 1981-11-30 1983-12-13 Western Electric Company, Inc. Electrical connector
US4422703A (en) * 1981-09-15 1983-12-27 Thomas & Betts Corporation Electrical connector for use with multi-pin arrays
FR2536593A1 (fr) * 1982-11-24 1984-05-25 Doloise Metallurgique Element de connexion pour etablir un contact elastique de pression avec au moins une surface conductrice
US4850889A (en) * 1988-06-06 1989-07-25 Lasota Laurence Serial electrical connector
US4975074A (en) * 1989-02-24 1990-12-04 Cray Research, Inc. Cam actuated electrical connector
US4984993A (en) * 1989-05-12 1991-01-15 Cray Research, Inc. Two-piece edge ZIF connector with sliding block
EP0541088A3 (enrdf_load_stackoverflow) * 1991-11-07 1994-04-27 Burndy Corp
US5384433A (en) * 1991-10-29 1995-01-24 Aptix Corporation Printed circuit structure including power, decoupling and signal termination

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118854U (enrdf_load_stackoverflow) * 1990-01-09 1991-12-09

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978666A (en) * 1957-05-27 1961-04-04 Ibm Fluid pressure connector for printed circuit card
US3090026A (en) * 1956-12-13 1963-05-14 Monroe Calculating Machine Electrical connectors
US3188598A (en) * 1962-06-20 1965-06-08 Bell Telephone Labor Inc Printed circuit board connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090026A (en) * 1956-12-13 1963-05-14 Monroe Calculating Machine Electrical connectors
US2978666A (en) * 1957-05-27 1961-04-04 Ibm Fluid pressure connector for printed circuit card
US3188598A (en) * 1962-06-20 1965-06-08 Bell Telephone Labor Inc Printed circuit board connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, Pittwood et al., Vol. 12, No. 8, 1/1970, p. 1210 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750086A (en) * 1972-01-03 1973-07-31 Gen Tel Co Calif Rapid connector
US3883207A (en) * 1973-09-13 1975-05-13 Molex Inc Low insertion force connector for modular circuit packages
US4001679A (en) * 1975-02-19 1977-01-04 Cargile William P Wedge action electrical test probe
FR2312915A1 (fr) * 1975-05-30 1976-12-24 Amp Inc Connecteur electrique
DE2629250A1 (de) * 1975-07-04 1977-01-27 Bonhomme F R Steckverbinder fuer leiterplatten mit gedruckten schaltungen
EP0002114A1 (en) * 1977-11-14 1979-05-30 AMP INCORPORATED (a New Jersey corporation) Zero insertion force printed circuit board edge connector
US4189200A (en) * 1977-11-14 1980-02-19 Amp Incorporated Sequentially actuated zero insertion force printed circuit board connector
EP0022305A1 (en) * 1979-07-06 1981-01-14 E.I. Du Pont De Nemours And Company Zero insertion force toggle link connector
US4422703A (en) * 1981-09-15 1983-12-27 Thomas & Betts Corporation Electrical connector for use with multi-pin arrays
US4420206A (en) * 1981-11-30 1983-12-13 Western Electric Company, Inc. Electrical connector
FR2536593A1 (fr) * 1982-11-24 1984-05-25 Doloise Metallurgique Element de connexion pour etablir un contact elastique de pression avec au moins une surface conductrice
US4850889A (en) * 1988-06-06 1989-07-25 Lasota Laurence Serial electrical connector
US4975074A (en) * 1989-02-24 1990-12-04 Cray Research, Inc. Cam actuated electrical connector
US4984993A (en) * 1989-05-12 1991-01-15 Cray Research, Inc. Two-piece edge ZIF connector with sliding block
US5384433A (en) * 1991-10-29 1995-01-24 Aptix Corporation Printed circuit structure including power, decoupling and signal termination
EP0541088A3 (enrdf_load_stackoverflow) * 1991-11-07 1994-04-27 Burndy Corp

Also Published As

Publication number Publication date
SE379894B (enrdf_load_stackoverflow) 1975-10-20
NL7011418A (enrdf_load_stackoverflow) 1971-02-09
DE2038556A1 (de) 1971-04-15
JPS504270B1 (enrdf_load_stackoverflow) 1975-02-17
ES382439A1 (es) 1973-02-16
CH509724A (fr) 1971-06-30

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